Learners explore what happens to light intensity as depth increases using a light intensity logger. They construct a PVC model to hold water and identify what factors could influence the amount of light attenuation.

Students perform computer simulations on air dispersion. In this chemistry instructional activity, students calculate energy transfer based on specific heat and temperature change. They explain the causes of smog.

Fourth graders investigate scientists and inventors. In this science instructional activity, 4th graders discuss inventors and scientists. Students research their chosen inventor or scientists and write a report about that person.

This page discusses sets and set theory in mathematics and probability, and it discusses the notation and properties of sets.

This page, which is provided for by the University of St. Andrews, traces the history of Set Theory as well as the concept of infinity and the infinite set.

This math tutorial site covers set theory, axioms, category theory, logic, mathematical problems, and point-set topology.

Discrete mathematics deals with areas of mathematics that are discrete, as opposed to continuous, in nature. Sequences and series, counting problems, graph theory and set theory are some of the many branches of mathematics in this...

Conceptual explanation of set theory and the logical foundations of mathematics. Written clearly and avoids technical notation.

This page provides extensive information about sets and bags. Includes descriptive set notation and examples.

Help your students identify sets and intersections of sets with this musical activity. Using the concept of key signatures, students will learn that scales are sets of notes. Included with this lesson plan are downloadable worksheets and...

Site gives four different definitions of a closed set in mathematics. Each of the definitions has at least one link for further clarification. The site also expresses which of these definitions is most commonly encountered.

The Amazing Mathematical Object Factory allows you to review many combinatorial objects by producing lists of mathematical objects. This game helps make discrete mathematics more accessible. Combinatorial objects are studied in discrete...

The University of Saskatchewan offers this resource for the review of mathematical concepts that students need to enter university level math courses. Topics include mental arithmetic, algebra, geometry, trigonometry, exponential and...

Lengthy biography of Euler that sets him in relationship with his contemporaries in mathematics and physics. Several quotes and pictures available, as well as links to relevant mathematical topics. A terrific site.

This site progresses in iterations through Mandelbrot and Julia sets to explain fractals and the mathematics behind them.

Students learn about complex networks and how to represent them using graphs. They also learn that graph theory is a useful mathematical tool for studying complex networks in diverse applications of science and engineering, such as...

This web site addresses counting and adding in fractal operations, as well as the role of the Fibonacci sequence in fractal geometry.

A dozen topology topics are listed here for both the teacher's and the student's use. Knot Theory, Bundles, and Topology Structures are just some of the areas which are explored in depth. Detailed explanations and necessary sketches and...

Contains over five hundred Geometry articles, problems, puzzles, and games. Some sites relating to circles are provided within this list.

This is an interesting site for information on chaos and fractals. Includes links to interactive activities to learn more.

This site provides some links to activities and lesson plans dealing with fractals and chaos.

A great resource for beginners. The site begins with a definition of iteration of functions, and proceeds from there to discuss fractal dimension.